Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain Practical System of Arithmetick, Adapted to the United States |
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Page 13
Circular Motion . 60 seconds ( " ) make 1 minute , 60 minutes , 1 degree , 30
degrees , 1 sign , S. 12 signs , or 360 degrees , the whole great circle of the a
Zodiack Explanation of Characters used in this Book . Equal to ARITHMETICAL
TABLES ...
Circular Motion . 60 seconds ( " ) make 1 minute , 60 minutes , 1 degree , 30
degrees , 1 sign , S. 12 signs , or 360 degrees , the whole great circle of the a
Zodiack Explanation of Characters used in this Book . Equal to ARITHMETICAL
TABLES ...
Page 14
Improved and Enlarged, Being a Plain Practical System of Arithmetick, Adapted
to the United States Nathan Daboll. Explanation of Characters used in this Book .
Equal to , as 12d . = 1s . signifies that 12 pence are equal to 1 shilling . + Nfore ...
Improved and Enlarged, Being a Plain Practical System of Arithmetick, Adapted
to the United States Nathan Daboll. Explanation of Characters used in this Book .
Equal to , as 12d . = 1s . signifies that 12 pence are equal to 1 shilling . + Nfore ...
Page 17
SIMPLE ADDITION , Is putting together several smaller numbers , of the same d
aomination , into one larger , equal to the whole or sum total ; as 4 dollars and six
dollars in one sun is 10 dollars . B3 RULE . Having placed units under units ...
SIMPLE ADDITION , Is putting together several smaller numbers , of the same d
aomination , into one larger , equal to the whole or sum total ; as 4 dollars and six
dollars in one sun is 10 dollars . B3 RULE . Having placed units under units ...
Page 19
... and reckon the figures downwards in the same manner as they were added
upwards , and if it be right , this sum total will be equal to the first : Or cut off the
upper line of figures , and find the amount of the rest ; then if the amount and
upper ...
... and reckon the figures downwards in the same manner as they were added
upwards , and if it be right , this sum total will be equal to the first : Or cut off the
upper line of figures , and find the amount of the rest ; then if the amount and
upper ...
Page 20
... each directly even with the 5 7 6 6 figures in its row ; ' find the sum of these 8 y
5 5 remainders ; then if the excess of nines in the sum found as before , is equal
to the 18 3 0 3 excess of nines in the sum total , the work is supposed to be right .
... each directly even with the 5 7 6 6 figures in its row ; ' find the sum of these 8 y
5 5 remainders ; then if the excess of nines in the sum found as before , is equal
to the 18 3 0 3 excess of nines in the sum total , the work is supposed to be right .
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